Method and system for improving positioning accuracy in cellular networks
First Claim
Patent Images
1. A method comprisingestablishing a radio link between a mobile terminal and at least one fixed transceiver of a cellular network;
- acquiring at least two position estimates for the current position of said mobile terminal on at least two different frequencies; and
calculating an averaged position value from said at least two position estimates.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for improving the accuracy of positioning methods based on the available infrastructure of a cellular network or cellular networks. One aspect involves establishing a radio link between a mobile terminal and at least one fixed transceiver of a cellular network. At least two position estimates are acquired for the current position of the mobile terminal on at least two different frequencies, and an averaged position value is calculated from the at least two position estimates.
41 Citations
45 Claims
-
1. A method comprising
establishing a radio link between a mobile terminal and at least one fixed transceiver of a cellular network; -
acquiring at least two position estimates for the current position of said mobile terminal on at least two different frequencies; and calculating an averaged position value from said at least two position estimates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method comprising:
-
establishing a radio link between a mobile terminal and at least one fixed transceiver of a cellular network; transmitting a first signal suitable for position measurements on a first frequency; and transmitting a second signal suitable for position measurements on a second frequency. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A method comprising:
-
establishing a radio link between a mobile terminal and at least one fixed transceiver of a cellular network; transmitting a first signal suitable for position measurements on a first frequency; receiving a second signal suitable for position measurements on a second frequency; and deriving a second position estimate from measured parameters of said second signal. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
-
-
33. An apparatus comprising:
-
at least one radio communication unit adapted to acquire a first position estimate on a first frequency and a second position estimate on a second frequency, and a processor connected to said at least one radio communication unit and configured to calculate a combined position value as a function of said position estimates. - View Dependent Claims (34, 35, 36, 37, 38, 39, 42, 43, 44, 45)
-
-
40. A device comprising:
-
means for acquiring a first position estimate on a first frequency; means for acquiring a second position estimate on a second frequency; and means for calculating a combined position value as a function of said position estimates.
-
-
41. A system comprising:
-
at least one base transceiver station of a cellular network; a mobile terminal adapted for transmitting and/or receiving signals on at least two different frequencies; and a processor adapted to determine a position based on measured signal parameters, and to calculate an combined position value as a function of at least two position estimates.
-
Specification